add bootstrap and refactoring sign-in and sign-up views
rename controller and omit email to user model
#23 관리자가 직접 회원등록 할수있또록
#9 shorten url using googleapi
Merge pull request #17 from DonutWorks/feat/check-reader

unread added. (#4)
Merge pull request #18 from DonutWorks/refactoring-view-with-bootstrap

add bootstrap and refactoring sign-in and sign-up views (#19)
Merge pull request #24 from DonutWorks/refact/import-excel-controller

rename controller and omit email to user model (#21)
#9 resolve conflict
Merge pull request #25 from DonutWorks/feat/issue-#9

#9 shorten url using googleapi
basic auth added
Merge branch 'master' into feat/admin-page

Conflicts:
	app/views/devise/registrations/new.html.erb
	app/views/devise/sessions/new.html.erb
	config/routes.rb
Merge pull request #22 from DonutWorks/feat/admin-page

blank admin page added. (#6)
Merge branch 'master' into feat/check-unread-users-in-admin

Conflicts:
	app/views/admin/index.html.erb